OP
- Thread Starter
- #21
How about headphones?
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Why does Bluetooth audio transmission must use compression?
- Thread starter sarumbear
- Start date
OP
- Thread Starter
- #22
How about battery life? Have you ever seen a Wi-Fi headphone?
The AptX Lossless press release I've already linked to, which I quoted above.
Forgot about BT headphones, but personally can't imagine wanting headphones at all...and I'd go wired over BT. There could be dlna headphones out there, don't know.
OP
- Thread Starter
- #25
I see that but you said:
the phrase now solved means they managed something which they couldn't before. It looks to me that they simply have changed the compression rate to slide up to mathematically lossless. I can't see anything there to be solved.
OP
- Thread Starter
- #26
The vast majority of headphones on sale are wireless. It is a $45 Billion industry. Even Mark Levinson introduced a wireless headphone.
With each BT audio "improvement" (is codec the right word?) don't you need both a transmitting device and receiving device that can use that latest feature? I'd guess with headphones that would be a kit, but not so much for other BT uses.
JBL's Gaming Earbuds Come With a 2.4GHz Dongle to Eliminate Lag
Bluetooth introduces irritating latency while gaming, so JBL is offering a clever way around it with its new gaming earbuds.
gizmodo.com
That's nice but I don't use or need headphones. If I were still working and travelling a lot by air I possibly would get a pair of noise cancelling headphones but generally not my thing. Levinson, meh.
Trell
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LDAC codec can stream lossless 16 bits/44.1kHz over Bluetooth.
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en.m.wikipedia.org
LDAC (codec) - Wikipedia
No it can't. It's a lossy codec. Stereo 16 bits/44.1kHz has a bit rate of 2 x 16 x 44100= 1,411 kbps. LDAC tops out at 990 kbps.
But FLAC is lossless and operates in that area....
OP
- Thread Starter
- #34
It’s not Wi-Fi.JBL's Gaming Earbuds Come With a 2.4GHz Dongle to Eliminate Lag
Bluetooth introduces irritating latency while gaming, so JBL is offering a clever way around it with its new gaming earbuds.
Technically no, but colloquially such non-Bluetooth RF headphones are sometimes called wi-fi headphones. The point is non-Bluetooth wireless headphones exist, some of which are lossless.
But can still go above 990 kbps depending on the audio content being compressed.
OP
- Thread Starter
- #37
Well they shouldn’t be. Nor that I saw any example. Wi-Fi, Bluetooth and proprietary wireless all work at the 2.4GHz band. Their names are the only thing that separates them to the user.
You can’t use proprietary on a smartphone as their wireless is not upgradeable and you can’t use Wi-Fi either as the current requirement is too high.
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OP
- Thread Starter
- #39
It’s not a rumour. They announced it in 2019. It’s an extension called HDR which supports up to 8Mbit/s.
Trell
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Ah, yes, in case the LDAC has content it is unable to compress lossless to fit BT transmission rate.
